Home / 10,440.72-15,660.84-2,543.27

Finding the Fourth Proportional to 10,440.72, 15,660.84 and 2,543.27

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Solution

The fourth proportional to 10,440.72, 15,660.84 and 2,543.27 is: 3,814.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.72 : 15,660.84 = 2,543.27 : x
  2. Step 2: Convert to fraction form
    10,440.72/15,660.84 = 2,543.27/x
  3. Step 3: Cross multiply
    10,440.72x = 15,660.84 × 2,543.27
  4. Step 4: Simplify right side
    10,440.72x = 39,829,666.24
  5. Step 5: Solve for x
    x = 39,829,666.24/10,440.72
  6. Step 6: Final answer
    x = 3,814.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.